Progressive Workouts The workout sandbag is training equipment combining the advantages of household barbells, dumbbells, medicine balls, kettlebells, and other fitness equipment. It provides a progressive way to perform WODs, Cross Training, Tactical Fitness, and Athlete training. It helps you strengthen the core, stabilizer muscles, and keep high-intensity cardio routines. All in all, you can benefit a lot after doing excises with the sandbag tens of times. The multiple handle options give you the freedom to do a range of high or low-level sandbag training workouts. We hope you will be pleased with this workout equipment. Ultra Durable Each fitness sandbag is made with top-notch materials and workmanship. Each bag employs PVC Tarpaulin for a durable and smooth finish. It feels comfortable and can withstand brute force without tearing. The rip-stop across the material is well done because the seals around the handles, zippers, and inner filler bags are double-stitched. Our power bag features double-sealed inner liners with double Velcro closures to avoid a sand leak. What makes these training sandbag the choice - Tough PVC Tarpaulin surface and nylon inner filler bag. - Double-sealed inner liners with double Velcro closure design for unmatched containment. - Multiple gripping handles for plenty of workout options. - Adjustable weight to accommodate different fitness levels. - Filler bag holds up to 10 lbs depending on the sand. - DOES NOT COME WITH SAND!